Originally Posted by GSNfan
The EXIF says this shot was done in aperture priority.
When -1.3EV is dialed in, the camera compensates by either increasing the shutter speed, the f stop or decreasing the ISO sensitivity.
in this case the f stop is fixed because it was shot in aperture priority, shutter speed is at maximum hand holdable of 1/30 so to compensate for that -1.3EV the camera's firmware lowered the ISO sensitivity of the sensor... .
DOn't follow the logic.
Dial in -1.3 EV and you will need to increase shutter speed (to 1/60 or so). And the ISO stated on the EXIF, as suggested, is the EXIF used.